It's easy to paint a rosy picture of an imagined better alternative.
> the trillion dollar companies who traffic in fossil fuels are way more politically powerful than the future renewable energy companies
Do names like Solyndra or Northvolt ring a bell? Renewables companies are also capable of being backed by popular politicians and raising billions of dollars in capital; that alone is no guarantee of success. If you're claiming that the diligence of O&G operatives in the shadows is what led to the downfall of these companies, well, that just sounds cartoonish to me, which I suppose is appropriate given the context.
In general, there hasn't been an incumbent in history that was not more politically powerful than upstart startups looking to disrupt their business. That's what being an incumbent means. Yet Ford successfully put carriage-makers out of business, and Tesla took a lot of established carmakers' lunch money. It's a very dim view of the world to suggest that political power, rather than the real-life economics of a new technology actually being better than the old, drives change.
> renewables are already on par with fossil fuels pretty much across the world, and their costs are dropping considerably
If this were true, German industry would not be having quite such a hard time as they are now.
> networks of roads to carry the trucks that move the gas to those gas stations
Roads aren't built to carry gasoline trucks. That's a complete inversion of logic. There's not a single road that would be obviated in a full-EV world. Even the roads going to and from refineries! Plastics will still need to be made.
> If we were starting from scratch, it would cost a fraction of that money to beef up the power grid to supply that power to electric cars in the form of electricity instead
Some estimates are at $2-4T to go full EV[0]. That's hardly a small chunk of change. Have you tried adding a L2 charging port to your home? I have. It cost me about $550 in just the copper wires alone, and the labor of going around the attic adding conduit and pulling wires was a pain in the ass. Scale that up nationwide and I don't see a cheap or easy solution here.
If you're really pressing the "starting from scratch" bit, well, that's an unanswerable hypothetical.
> in the real world, the primary factors keeping fossil fuels around are [...]
In the real world, a gallon of gasoline is roughly 11 kWh of energy (look up how big and expensive a battery of that size is), and I still haven't found a battery-powered mower that mows better than a cheap gas-powered one.
[0]: https://energyanalytics.org/infrastructure-requirements-for-...